01
What this one is
This beanie is the kind of project you pull out on a quiet evening when you want something small and finished by bedtime. It's sized for babies and little kids, so it works up fast and uses only a bit of yarn. If you've got a new baby to welcome, a toddler with a bare head, or just want a soft little cap to keep on hand, this one fits the bill. The mohair-cotton blend makes it soft enough for the most sensitive skin.
Your hands will spend most of their time turning, single crocheting into back loops only, and sneaking one extra stitch into the foundation chain at the end of every row. That small, repeated extension is what tapers the hat into shape instead of a flat rectangle. Six rows gets you there, then a seam and a cinched top finish the job. All told, you're looking at about four hours from first stitch to woven-in ends.
02
Try it another way
This shape scales nicely if you want to play with it. Add a row or two beyond the six here and you'll get a deeper beanie for an older kid, since each row simply repeats the same turn, back-loop SC, and foundation-chain extension. You could also swap the yarn pairing: try two strands of worsted cotton for a cooler summer version, or a different fuzzy yarn in place of the alpaca silk if mohair isn't on hand, as long as you keep to a 4mm hook and worsted weight. Color placement is easy to change too -- since you're holding two strands together anyway, swap one strand's color halfway through the six rows for a subtle two-tone fade, or change both strands together between rows for stripes. Row 3's 36 SC count gives you a sense of the width to expect, so use it as a checkpoint if you're adjusting gauge. For a non-baby use, this same construction makes a soft headband if you stop after a couple of rows and seam it into a loop instead of cinching the top. Scrap yarn from other worsted projects works well here too, since the finished piece is small.
What makes this one satisfying is the shaping trick hiding inside an otherwise simple single crochet fabric. You hold the cotton and the mohair-look alpaca silk together the whole way, so every stitch carries both the structure of the cotton and the halo of the alpaca silk without any color changes to track. Working into the back loops only on every row builds a neat ridged texture that reads almost like garter stitch. The real payoff is the end of each row, where you extend one stitch into the unworked foundation chain -- a small move that quietly tapers the whole piece into a fitted shape. Seaming the outside loops together and cinching the last row closed turns a flat strip into a beanie with almost no fuss.